<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <link rel="icon" href="favicon.ico">
    <title>404</title>
    <style>
      html, body {
        padding: 0;
        margin: 0;
      }
      .cont-box {
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        background-color: #efefef;
        flex-direction: column;
      }
      .cont-box .text-404 {
        font-size: 80px;
        color: #999;
      }
      .cont-box .home-link {
        color: #999;
      }
      .cont-box .home-link:hover {
        color: #666;
      }
    </style>
  </head>
  <body>
    <div class="cont-box">
      <span class="text-404">404</span>
      <a class="home-link" href="/">跳转主页</a>
    </div>
  </body>
</html>
